Ideal Heating EVOMAX 2 - 3.9 Menu - Cascade manager

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3.9 Menu – Cascade manager
The cascade manager menu has the
followingsubmenus:
Cascade manager
Status
Operating Mode
Settings
3.9.1 Menu – Cascade manager -
Status
Onselectingstatus,thefollowingsubmenus
areavailable:
Cascade manager
Summary
Boilers
Thiswill now showthe status of theplant
cascade,andeachboilerinthecascade.
3.9.2 Menu – Cascade manager –
Status – Summary
Summary shows the actual heat capacity
being generated and the target calculated
requirement.
Summary
Actual: 0%
Requested: 0%
3.9.3 Menu – Cascade manager –
Status – Boilers
Summaryshowstheactualoperatingmode
andheatcapacitybeinggeneratedbyeach
boiler,thelistcanbescrolledifrequiredto
showallboilerscongured:
Boilers
Boiler 1: Off, 0%
Boiler 2: Off, 0%
3.9.4 Cascde Manager - Operating
mode
TheCascadeboilersequencecontrolcanbe
settooneofthreecontrolmethods.Select
theeldinordertoscrollthroughthethree
options.
Hours run - The sequence changeover
isdeterminedbythe number of burner-on
hours.Thehoursrunvaluecanbeadjusted
intheSettingsmenu.
Operating mode
Hours run
Done
Fixed Order-Thesequencechangeover
orderisxed.
Operating mode
Fixed order
Done
Timed-Thesequencechangeoveris
determinedbyoperatingtimeperiod.The
periodcanbeadjustedintheSettings
menu.
Operating mode
Timed
Done
Onceselected,selectDonetoconrm.
Operating mode
Timed
Done
3.9.5 Menu – Cascade manager –
Settings
Thesettingsmenuwillhavecontentbased
uponconguration of aSlaveheatsource
andtheselectedCascadeOperatingmode.
HoursrunorTimed.
Alloptionsareshownbelow,butnotallmay
be present.
Settings
Boiler modulation
Sequence on delay
Hours run
Settings
Boiler modulation
Sequence on delay
Hours run
Sequence order
Settings
Sequence on delay
Hours run
Sequence order
Timed
Settings
Hours Run
Sequence order
Timed
Ext. heat source sequence
Settings
Sequence order
Timed
Ext. heat source sequence
Settings
Timed
Ext. heat source sequence
3.9.6 Menu – Cascade manager –
Settings – Boiler modulation
Boiler modulation controls the switching
capacity set points in the cascade. Each
boilerincascadecanbeswitchedonatthe
earliest or latest modulation capacity set
point(modulationmax.),aswellasswitched
offinthesameway(modulationmin.).
Boiler modulation
Modulation max.
Modulation min.
3.9.7 Modulation max
Thiscausestherstboilerinthesequenceto
modulateuptotheModulationmaxcapacity
settingbeforeitbringsonthesecondboiler
inthesequenceandthenmodulatesdown
tomatchthecapacityofboth.Thiscontinues
foreachboiler.
Modulation max.
80%
3.9.8 Modulation min
Thiscausesthecascadetomodulatedown
totheModulationminsettingoneachboiler
beforeswitchingoneoff.Thisthencontinues
foreachboiler.
Modulation min.
30%
3.9.9 Menu – Cascade manager –
Settings – Sequence on delay
This parameter sets the time delay when
bringing on boilers in sequence, this is to
allowfortheboilercascadetobettermatch
theloadduringthestartofademandcycle.
Sequence on delay
10secs
3.9.10 Menu – Cascade manager –
Settings – Sequence order
Theorderthattheboilersruninsequence
canbeset,thisdoesnotaffecttheleadboiler
rotation.To change the order,remove the
boilernumbersinsequencebysettingthem
toNNandthenredenetheboilernumbers
as required. By default the boiler number
followsthesequencenumber.
Sequence order
Seq. 1: Boiler 01
Seq. 2: Boiler 02